@book{MTMT:35474841, title = {Szakmai Útmutató az épületek, épületszerkezetek bontásához}, url = {https://m2.mtmt.hu/api/publication/35474841}, author = {Kiss, Jenő and Csermely, Gábor and Könczöl, Gyula and Metzing, Ferenc and Hegyi, Dezső and Dezső, Zsigmond}, publisher = {Hungarian Chamber of Engineers}, unique-id = {35474841}, year = {2023} } @book{MTMT:33704751, title = {DULI 90}, url = {https://m2.mtmt.hu/api/publication/33704751}, isbn = {9786158196536}, editor = {Dubniczky, Miklós and Hegyi, Dezső}, publisher = {Magyar Mérnöki Kamara Tartószerkezeti Tagozat}, unique-id = {33704751}, year = {2022} } @book{MTMT:33072765, title = {Különleges tartószerkezetek}, url = {https://m2.mtmt.hu/api/publication/33072765}, isbn = {9786155445903}, author = {Hegyi, Dezső and Gáspár, Orsolya and Fehér, Eszter}, publisher = {TERC Szakkönyvkiadó}, unique-id = {33072765}, year = {2022} } @article{MTMT:32604626, title = {The effect of wind on historical timber towers analyzed by plastic limit analysis in the focus of a collapse}, url = {https://m2.mtmt.hu/api/publication/32604626}, author = {Hegyi, Dezső and Armuth, Miklós and Halmos, Balázs and Marótzy, Katalin}, doi = {10.1016/j.engfailanal.2021.105852}, journal-iso = {ENG FAIL ANAL}, journal = {ENGINEERING FAILURE ANALYSIS}, volume = {134}, unique-id = {32604626}, issn = {1350-6307}, abstract = {Climate change severely impacts the architectural heritage. Old buildings may have survived many large storms and heavy snows in the past, but extremes have increased recently. Meanwhile, the condition of historical structures gradually degrades even if they have had regular maintenance. Church towers are strongly affected: they are subject to increased wind compared to the other parts of the building. They are in a high location and gain less attention because of their out-of-the-way position. On 17th September 2017, a massive storm in the Banat region, Romania, caused several church towers to collapse: the towers of Toager, Remetea Mare, Donceni and Ghilad fell down to pieces that day. The collapse of the tower of Dumbrava was one of the buildings involved, this study aims to clarify whether the poor condition of the building, or the flaw of the original design was the main reason for the failure in this village. The structural analysis of such historical timber structures can be problematic as the weak joints of the structure limit the load-bearing capacitance in an exceptionally low level if the traditional elastic analysis is used. The present paper points out that the plastic limit analysis can give a more realistic breaking load level for the high order statically indeterminate carpenter roofs.}, year = {2022}, eissn = {1873-1961} } @article{MTMT:33708014, title = {Az igazfalvi református templom}, url = {https://m2.mtmt.hu/api/publication/33708014}, author = {Marótzy, Katalin and Halmos, Balázs and Armuth, Miklós and Hegyi, Dezső}, journal-iso = {DOLG ERDÉLYI MÚZ ÉREM- ÉS RÉGISÉGTÁRÁBÓL}, journal = {DOLGOZATOK AZ ERDÉLYI MÚZEUM ÉREM- ÉS RÉGISÉGTÁRÁBÓL}, unique-id = {33708014}, issn = {1842-5089}, year = {2021} } @article{MTMT:32592511, title = {An Extensive Review on the Viscoelastic-plastic and Fractural Mechanical Behaviour of ETFE Membranes}, url = {https://m2.mtmt.hu/api/publication/32592511}, author = {Karádi, Dániel Tamás and Hegyi, Dezső}, doi = {10.3311/PPar.18403}, journal-iso = {PERIOD POLYTECH ARCHITECT}, journal = {PERIODICA POLYTECHNICA ARCHITECTURE}, volume = {52}, unique-id = {32592511}, issn = {0324-590X}, year = {2021}, eissn = {1789-3437}, pages = {121-134} } @article{MTMT:32114285, title = {The cause of damage and failure of the Mud-brick vault of the Khan in New-Gourna}, url = {https://m2.mtmt.hu/api/publication/32114285}, author = {Szabó, Simon and Kövesdi, Andrea and Vasáros, Zsolt and O. Csicsely, Ágnes Magdolna and Hegyi, Dezső}, doi = {10.1016/j.engfailanal.2021.105567}, journal-iso = {ENG FAIL ANAL}, journal = {ENGINEERING FAILURE ANALYSIS}, volume = {128}, unique-id = {32114285}, issn = {1350-6307}, abstract = {New Gourna, Egypt became an iconic place of mud-brick architecture in the middle of the 20th century as a result of the work of Hassan Fathy. In the dry climate of Egypt, mud-brick is an almost perfect building material, but the change in the environmental circumstances have caused damage to the structures. The present study aims to find the root of the problems to give chance to find suggestions for reliable strengthening. The paper focuses on one of the central buildings of New Gourna, the so-called Khan, designed by Hassan Fathy. The structure of the arcade of the Khan is modeled by advanced Finite Element method to simulate gradual deformation and failure with special attention to recent renovations that seem to have turned the condition of the structures even worse. As there are no experimental tests on the real materials, possible material models were collected for the analysis, and the most feasible result, which fits the visible failure was accepted. According to the analysis, the failure of the structure is caused by the wetting of the mud mortar layer between the limestone elements of the plinth. There were no significant signs of weakness in the foundation. The wetting of the mud mortar in the plinth is caused by the dramatical change in the ground-water level caused by the building of the Aswan High Dam and the dramatic change in the amount of wastewater caused by the increased population in New Gourna.}, year = {2021}, eissn = {1873-1961}, orcid-numbers = {Hegyi, Dezső/0000-0002-1543-0682} } @article{MTMT:31940771, title = {An elastic phenomenological material law of technical textile with a nonlinear shear behaviour}, url = {https://m2.mtmt.hu/api/publication/31940771}, author = {Karádi, Dániel Tamás and Sipos, András Árpád and Halász, Marianna and Hliva, Viktor and Hegyi, Dezső}, doi = {10.1177/07316844211005842}, journal-iso = {J REINF PLAST COMP}, journal = {JOURNAL OF REINFORCED PLASTICS AND COMPOSITES}, volume = {40}, unique-id = {31940771}, issn = {0731-6844}, abstract = {In technical textile engineering, macro-level phenomenological modelling effectively describes the material's highly nonlinear behaviour. However, existing material laws concentrate on the normal stiffness in the orthotropic yarns and simplify the shear effect because of the two orders of magnitude difference between shear and normal stiffness. This article introduces an improved phenomenological model that includes nonlinear shear behaviour, and it determines the material parameters with a previously applied data fitting method for exponential functions. The nonlinear shear behaviour is valid for the elastic state, that is, at the service level of the loads. Time-dependent, cyclic loading or plastic behaviour is not considered.}, keywords = {Shear modulus; technical textiles; uniaxial test; nonlinear constitutive law}, year = {2021}, eissn = {1530-7964}, pages = {759-769}, orcid-numbers = {Sipos, András Árpád/0000-0003-0440-2165; Halász, Marianna/0000-0002-0289-8817; Hliva, Viktor/0000-0002-1286-5787; Hegyi, Dezső/0000-0002-1543-0682} } @article{MTMT:31770965, title = {Numerical stability analysis of arch-supported membrane roofs}, url = {https://m2.mtmt.hu/api/publication/31770965}, author = {Hegyi, Dezső}, doi = {10.1016/j.istruc.2020.11.025}, journal-iso = {STRUCTURES}, journal = {STRUCTURES}, volume = {29}, unique-id = {31770965}, issn = {2352-0124}, year = {2021}, eissn = {2352-0124}, pages = {785-795} } @article{MTMT:31241108, title = {Az építész és mérnöki tervező munka összhangja: Egy erdei villaház esete}, url = {https://m2.mtmt.hu/api/publication/31241108}, author = {Hegyi, Dezső and Kapovits, Géza}, doi = {10.33268/Met.2019.6.13}, journal-iso = {METSZET}, journal = {METSZET: ÉPÍTÉSZET ÚJDONSÁGOK SZERKEZETEK RÉSZLETEK}, unique-id = {31241108}, issn = {2061-2710}, year = {2019}, pages = {92-97} }